| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Handy John K | Executive Vice President | 8000 FORSYTH BLVD, ST. LOUIS | /s/ By: Paul A. Steiner For: John K. Handy | 05 Feb 2026 | 0001729970 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CBSH | Common Stock | Award | $0 | +7,667 | +19% | $0.000000 | 48,005 | 03 Feb 2026 | Direct | |
| holding | CBSH | Common Stock | 4,615 | 03 Feb 2026 | By Daughter | ||||||
| holding | CBSH | Common Stock | 10,154 | 03 Feb 2026 | By Spouse |